The object is providing an organic light emitting display device achieving a narrow bezel. A display device 10 has a first substrate 11, a second substrate 12, a sealant 25 sealing between the substrates, a display unit 15 including pixel circuits, a driving circuit 20 including a transistor for driving the pixel circuits, a first wiring unit for supplying voltage to the transistor, and a second wiring unit connecting between the transistor and the first wiring unit. The driving circuit 20 is disposed outside the display unit 15, the first wiring unit is disposed between the display unit 15 and the driving circuit 20, the display unit 15 and the first wiring unit are disposed between the first substrate 12 and the second substrate 12, the melting point of a second metal constituting the second wiring unit is higher than that of a first metal constituting the first wiring unit.